Knowledge management (KM) in a business-to-business (B2B) network is a different task than intraorganizational KM. Therefore this conceptual paper searches for an answer to the question of what we should re-search in this more demanding KM environment. We suggest that the social media provides a variety of vehicles for performing organizational learning via KM in B2B networks. Since this is relatively novel research area, we have done a literature review and propose a research agenda in this article.